camshaft

I'm thinking about putting a high compression piston and camshaft in my Warrior. I want it to run on pump gas, and I don't race at all, just trails. What setups would you guys recommend?

My buddy has a 95 warrior he just bought. The previous owner just replaced the starter clutch on the atv. after replacing the starter clutch it would not start. After my buddy bought it, we have been trying to get it running. We have came to the conclusion that the timing is off. However we...